Wrench



UNITED STATESPATENT OFFICE." g e rnITz KETTLER, or MUNICH, GERMANY."

WRENCH.

.To all iii/om t may concern.'

' Be it known that I, FRITZ KETTLER, acitizen of the Government ofGermany, residing at Munich, Germany, have invented a new and usefulWrench, of which the following is aspecication. i v

member having on its under side an inclined plane, anda lever mounted onsaid shank, said lever having its head portion adapted to engage withand ride on said inclined plane whereby when said lever is closed on thehandle it advancesthe movable' jaw towardl the stationary jaw so VthatVthe article to which the wrench is applied is firmly v.gripped by thejaws. f Y p It consists also of means. in the shank and handle of thewrench for restoring the Inov-l able aw to its normal position.

Itconsists also ofvarious details of con!v struction as will behereinafter setforth.

The inventionis satisfactorily illustrated in the accompanying drawing,but the important instrumentalities thereof may be varied, and so it isto be understood that the invention is not limited to the yspeciicdetails shown and described, as long Vas they are within the spirit orscope of the claims. Figure l represents a side elevation of a wrenchembodying my invention;

Fig. 2 represents a .partial side elevation rand partial longitudinalsection thereof;

y Fig. represents a line 83, Fig. 2;' a y Fig.` 4 represents ahorizontalline 4 4 Fig. 2.

longitudinal section on section on Fig. 5 represents a transversesection on line 5--5 Fig. 2.

Fig. 6 represents atop view of the wrench.V Fig. 7 represents alongitudinal section of' dy inventionfconsists of a wrench formedv of astationary jaw, a handed shank tovwhicli- Vthe latteris attached, amovable jawrmount-v ed on said shank, a member in said shank to whichsaid movable jawV is attached, lsaid.

otal portion yof the Alever enter the of the shank and are movabletherein, the

. Speciiation of Letters Patent. patented Sept 27, 1921Q Appiicpaiionf'filed November 13,11920. serial No. 423,985.'` f

shank 2, adapting said jaw to be adjusted to and from the stationary jawl.

Connected firmly with the inner side of the yokev 5 is the tongue 6which enters the shank 2, the latter being hollow or channeled for thepurpose, and permitting said tongue to move `with the yoke and consequently with thel jaw 4. ,l Y

"The underside of the tongue is tapering forming the inclined plane 7which acts as a cam and is engaged by the head 8 of the Y lever 9, thelatter being -mounted on the H shank 2 by the pivot or axis 10, it beingnoticed that said head 8 and adjacentpivchannel remainder of said lever.in the normal condi-v tion of the .wrench being outside of said shank,then in closing the jaws a portion .0f

the body of the lever below its pivot is adaptedk to y bc-inioved.intothe channel or hollow7 of the handle 3, When said lever is in closedposition itmay be grasped simultaneously with the handle by hand, thusretaining'the jaw 4 in adjusted position closed on the article to beheld 4ll designates a spring whose upper 'end is attached to the tongue6, as at 12, and whose lower end is attached to the adjacent end of thehandle 3, as at 13, said spring occupying pressed together, wherebythehead of the lever bears against the inclined plane 7 of the tongue 6and rides Vdownwardly thereon thus elevating said'ftongue andconsequently the yoke 5 andy movable jaw 4 pressing the latter firmlyagainst the article placed vbetween the jaws and so clamping saidarticle when the wrench may be operated as usual.

When the lever 9V is let go, the spring l1 draws down the tongue andconsequently the yoke and stationary jaw, the wrench thusv being openedwhereby it is removable from the article with which it was engaged, thelever 9 having resumed its normal position.

The stationary jaw l, shank 2 and handle 3 are formed of a piece ofsuitable metal or material bent longitudinally on itself form g by thewrench against the stationary jaw. f

Then the `lever ing said members hollow or channeled so that said shankis adapted to receive the tongue 6, portions of the lever 9 and portionsof the spring 1l respectively. As the stationary jaw is channeled inorder to strengthen the same-there is placed therein between the sidesthereof the filling piece 14 of rigid metal or material lshaped toconform to -said jaw and connected with the same by the rivets l5,

The lever 9 is formed of a piece of suitable metal or material bentonitself and its sides swaged together forming said lever of 'increasedstrength, the bend of the piece being swelled forming the flange 16which provides a broad surface for the fingers of the hand in graspingthe lever to press it toward the handle 3 in closing the jaws of thewrench.

Having thus described my invention what I claimras new and desi-re tosecure by Letters Patent, is

l. A wrench comprising a stationary jaw, a shank carrying the same, ahandle for said shank, sleeve slidable on said shank, a movable jaw, thesame being` connected with said sleeve, a tongue attachable -to saidsleeve adapted to movably engage said shank, said tongue having itslower portion inclined, and a lever mounted on said shank movable to andfrom said handle, the head of saidV lever being adapted to engagetheinclined portion' of said tongue and ride thereon whereby the tongueand sleeve and thereby the movable jaw may be operated to close thejaws.

2. A wrench comprising a stationary j aw, a shank carrying the same, ahandle for said shank, a sleeve slidable on said shank,

a movable jaw, the same being connected with said sleeve, a tongueattachable to said sleeve adapted to movably engage said shank, saidtongue having` its lower portionv inclined, a lever mounted on said`shank movable to and from said handle, the head of said lever beingadapted to engage the inclined portion of said tongue and ride thereonwhereby the tongue and sleeve and thereby the movable jaw be operated toclose the jaws, and a resilient member connected with the movable jawand the handle adapted to return the movable parts of the wrench tonormal positions.` y

within said shank, and a tongue attached to ythe movable jaw adapted tocarry the latter and to be engaged by said head.

4. In a wrench, a stationary jaw, a movable jaw, a shank adapted tocarry said stationary jaw, a tongue mounted freelyvwithin the shank andadapted to carry said movable jaw, and a .lever mounted on said shankadapted to engage said tongue and operate the movable jaw, said leverbeing formed of a piece bent on itself forming two parallel lengths sideby side, the bend of said pieces being outturned forming a laterallyextending flange. h y

5. lA wrencl formed of a stationary jaw, a shank, a movable jaw on thelatter, a lever mounted onsaid shank adapted to operate said movablejaw, a handle on said shank,

. said jaw, shank and handle being formed of a continuous piece ofmaterial channeled throughout its length, a member of the movable `iawbeing adapted to freely occupy the channel of said shank,'the head ofsaid lever being adapted to freely occupy the channel of the shank andthebody of said lever being adapted to freely enter the channel in saidhandle. h

6. In a wrench, a stationary jaw, a shank adapted to carry the same, ahandle on said shank, a movable jaw, a yoke carrying the latter andslidable on the .exterior of said shank, a tongue connected with saidmovable jaw, and movable on the interior of said shank, and a leverxonthe handle having its head within` said shank, engageable with saidtongue, whereby `the movable aw may be operated to close the same. h

f7. VIn a wrench, a channeled shank, a movable jaw mounted thereon, alever having its head mounted in theQchannel of said shank andengageable with said jaw, said lever being formed of a piece ofvmaterialdoubled on itself, the bend thereof being outturned laterally forming alaterally yextending flange on the forward side of said lever.

' FRITZ KETTLER.

Witnesses: l

FnANs TRAUTMAN, MAX Dnnnn.

